Archive · 18 Nov 2025
Tamil Nadu Braces for Heavy Rainfall, Schools Closed in Chennai
The weather office in India says that Tamil Nadu will have heavy rain from November 17 to 23, with very heavy rain on November 17.
Chennai and 11 other districts are on alert for this rain.
Because of the heavy rain, schools in Chennai and nearby areas are closed on November 18.
The weather office expects light to moderate rain with some heavy rain in many places.
They also say there might be thunderstorms and lightning in Tamil Nadu until November 21.
Heavy rainfall expected in Tamil Nadu from November 17 to 23, with very heavy rain on November 17.
Chennai and 11 other districts on IMD's yellow alert until November 22.
Schools closed in Chennai and adjoining districts on November 18 due to heavy rains.
IMD predicts light to moderate rain with isolated heavy rainfall in several districts.
Thunderstorms and lightning expected in Tamil Nadu until November 21.
- Who
- Indian Meteorological Department (IMD)
- What
- Forecast of heavy rainfall and thunderstorms in Tamil Nadu
- When
- November 17 to 23, with very heavy rain on November 17
- Where
- Tamil Nadu, including Chennai and 11 other districts
- Why
- Formation of a low-pressure area in the Bay of Bengal
Indian Meteorological Department (IMD)
General Meteorological Principles
Intensity of Rainfall
Indian Meteorological Department (IMD)
IMD has issued a yellow alert for heavy to very heavy rainfall in Chennai and several districts until November 22.
General Meteorological Principles
Low-pressure areas are generally associated with moderate rain, but can intensify if conditions are favorable.
- Rainfall Forecast
- Heavy to very heavy rainfall expected in Tamil Nadu from November 17 to 23
- Districts on Alert
- Chennai, Kancheepuram, Chengalpattu, Mayiladuthurai, Thiruvarur, Ariyalur, Cuddalore, Kanniyakumari, Karu Ranipet, Thanjavur, Thiruvallur, Thoothukudi, Tiruvannamalai, Viluppuram
- School Closure
- Government, private, and aided schools closed in Chennai and adjoining districts on November 18
- Thunderstorms and Lightning
- Expected in Tamil Nadu until November 21
Sources
IMD Update: Heavy rain likely over Tamil Nadu today as ‘low’ persists
Chennai Rain Alert: Traffic Hit, Schools Shut, IMD Warns of More Ahead; Check Tomorrow's Weather
New weather system likely in Bay of Bengal; more rain for Tamil Nadu: IMD
Tamil Nadu schools closed today due to heavy rains? Chennai, Kanniyakumari, 10 more districts on IMD's yellow alert
Chennai Rains Live Updates: City Hit By Heavy Rain, IMD Issues 'Yellow Alert' Till Nov 22
Puducherry, Karaikal Schools Closed Today Due to Heavy Rain Alert
Chennai weather to worsen by weekend; IMD forecasts widespread rain across Tamil Nadu
IMD warns of heavy rain in eight TN districts today
